20997690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{99989}}^1$

素因数の和:100006

約数の個数: 32

約数和(自身を含む): 57594240

約数和(自身を除く): 36596550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 99989, 199978, 299967, 499945, 599934, 699923, 999890, 1399846, 1499835, 2099769, 2999670, 3499615, 4199538, 6999230, 10498845, 20997690]

約数ペア:

[(1, 20997690), (2, 10498845), (3, 6999230), (5, 4199538), (6, 3499615), (7, 2999670), (10, 2099769), (14, 1499835), (15, 1399846), (21, 999890), (30, 699923), (35, 599934), (42, 499945), (70, 299967), (105, 199978), (210, 99989)]